Device for regulating the speed of motor-cars.



1. G. WALLMANN.

DEVICE FOR REGULATING THE SPEED 0F MOTOR CARS.

APPLICATION FILED MAY I6. I9I4.

1,160,472. Patented Nov. 16, 1915.

IN VEN TOR. WITNESSES 9 Q BY w @IP I ATTORNEY,

UNITE JOHANN G. WALLMANN, 0F OAKLAND, CALIFORNIA.

DEVICE FOR REGULATING- THE SPEED 0F MOTOR-CARS.

Licence.

.T0 all whom t may concern Be it known that I, JOHANN G. WALL- MANN, a citizen vof the United States, residing at Oakland, in the county of Alameda and State otCalifornia, have invented certain new and usefulk Improvements in Devices for Regulating the Speed of Motor- Cars, of which the following is a specification.

My invention relates to improvements in devices for regulating the speed of motorcars.

The object of my invention is to provide a device for motor-cars having the followingk special advantages; to-wit: the saving ofliquid fuel as used therein; the giving of power to the car `-`automatically when required; the regulating of the speed of the car in' descending grades, and other advantages which will hereinafter appear.

My invention consists in the combination and arrangement of parts shown in the accompanying drawing, described in the following speciication and claimed in the appended claims.

Referring to the said drawing the figure shows an elevation ofthe device embodying my invention, certain parts being shown in ""section.

In the drawing the numeral 1 shows mercury in cylinders 2 and 63. The cylinders 2 and 63 are provided with insulated contact pins 4 and 5 centrally penetrating the same as shown. A wire 9 connects the contact pin 5 to magnet 22 having connection by wire with magnet 22. connected at their bases by' tube 65 having a cock 6 and a grounding clamp 7, the said clamp being connected by wire 8 to batteries 14 as shown. A wire 10 connects contact pin# 4 to magnet 15 having connectionby lwire with a magnet 15. Awire 11 connects push button 12 to wire 10. I i ,l

A piston cylinder 72 'is provided with a cap 71. A piston 41is contained in said piston cylinder 72, the said piston having rod 35 supporting laminated armature 23 havin-g a wedged-shaped surface 36. A regulating arm 24 engages the part 36-1 as shown, said arm being pivoted to bracket 25 supported by magnet 22. A 'bracket 26 is supported by magnet 22, said bracket vsupporting guide tube 27 for wire 29 pivotally connecting arm 24 with lever 28 pivoted as shown. A support for said magnets 22 and 22 is shown at 70.

Specification of Letters Patent.

Cylinders 2 and 63 are Patented Nov. 16, 1915.

Application led May 16, 1914. Serial No. 889,002.

A branch 37 constitutes an inlet-port which is continued in the wall opposite thereto marked 78, the port in said wall so posltloned being designated 37. The said inlet-port is intended for the admission of air. The piston 41 is provided with an aperture 38 extending therethrough. A spring 34 engages piston 41 and wall 73, said wall being provided with an opening in which rod 21 operates. The rod 21 is connected to piston 41.

Piston valve 40 is provided with a hole 39 running transversely therethrough. A cylinder 20 provided with a spring 19 is threaded into piston 40. A laminated armature 16 is screwed to cylinder 20 and is positioned opposite to magnet 15 and magnet 15. A pipe 58 connects manifold 74 with passageway 33 within wall 42 through branch 31. Pipe 58 and branch 31 are provided with a hose connection 30. An air-vent above piston 40 is shown at 54. .A switch 66 is in connection with wire 8 as shown. A wire 64 connects magnet 22 with batteries 14, said wire having a connection extending to magnet 15 as shown. A wire 11 connects pushbutton 12 with wire 10.

53 represents a pivoted brake-lever connected 'to piston 48 by rod 46 in cylinder 49. A spring 59 is positioned between piston .48 and wall 51.

52 represents a lbranch provided with an opening constituting an air-inlet into the chamber containing spring59, a screw 60 closing one end of said branch. A brake rod 45 is threaded into and locked to cylinderhead 51, said rod pivotally supporting an equalizing. arm 43.` having brake rods 44. Branch 76 leads from chamber 77, being provided with hose connection 32. Opening 34 is in alinement with opening 31 and opening 37 is in alinement/with the opening in port 37. The screw 60 can be turned inwardly to close the opening at 52 when required. The push-button l12 may be placed on the steering-post or any place handy to the driver of the car. The lever 28 is suitably placed on the steering-post. By suitably adjusting v.the hand-lever 28, the admission of the/proper amount of air can be provided for mixing with the gas for smooth-running on a level road. On the ascending of elevations by the car the mercury 1 will How from the forward cylinder 2 to the rear cylinder 63 until it has reached a height so as to touch contact-pin 5, whereupon the following circuit is closed, namely: from storage batteries 14 via wire 8 to ground-clamp 7, and by means of metal tube 65 and mercury 1 in cylinder 63 to and through contact pin 5, thence over wire 9 through field magnets 22 and 22 and via wire 64 to storage batteries 14 completing the circuit and causing magnets 22 and 22 to pull down the armature 23, which is connected to piston rod 35, consequently causing the piston 41 to be depressed on the spring 34.

The piston 41 in its passage closes the port 37 and cuts olf the air supply to the manifold 74, causing a rich mixture of liquid fuel for the operation to enter the cylinders of the motor. The said rich mixture makes it possible for the motor to effect a strong pulling movement while the car is on the grade. On reaching the top ofa grade and level ground the mercury lowers in the cylinder 63 from contact with pin 5, breaking the circuit and'causing the magnets 22 and 22 to release the armature 23, the spring 34 forcing up the piston 41, causing the armature to go back to its previous position, it being forced upwardly in contact with arm 24. In this manner as explained the car has been adjusted for pulling on a level surface. On descending a. grade the mercury flows from the rear cylinder 63 to the front cylinder 2, which is the lowest, causing the mercury to rise in the cylinder and touch the insulated contact pin 4, closing the following circuits, to wit: from storage batteries 14 via wire 8, through switch 66, then continuing over -wire 8 to ground clamp 7 via the mercury 1 and tube 65 to and through the insulated contact pin 4 in cylinder 2 and thence over wire 10 and through magnets 15 and 15 by wire 10, closing the circuit as shown, and thereby causing said magnets to draw down the armature 16. The armature 16 being secured to piston 40 by tubular rod 2O causes the said piston to be depressed against the spring 19, simultaneously causing the piston 41 to be drawn down by the rod 21, closing the port 37 and opening the port 31.

The throttle of the car being closed permits such car to coast with its engine in gear-this causing a partial vacuum to be drawn in the manifold, and by the inlet 39 of the piston 40, opening the port 31, a partial vacuum is drawn in the cylinder 49, causing the piston 48 to be forced against the spring 59-thus shortening the distance betweenthe end of the brake-lever 53 and the equalizing rod 43. By shortening such distance tension is caused to be applied on rods 44, causing the brakes to be tightened, and thev more rapidly the ear runs the greater the vacuum formed by the engine, consequently the tighter the brakes of the ca-r will be drawn. The mercury switching device as shown should be affixed to the car and adjusted while the machine is on level ground, it being then wired to said electrically controlled valves. The rod 45 centrally connected to part 43 may be removed and the cylinder 49 used separately, the hose 32 being connected through branches 76 and 31 to said valves, which are connected to the manifold of the gas-motor by the pipe 58. To attain the position for the starting of the engine, the lever 28 should be pulled backwardly, causing the wire 29, which is preferably of steel, to pull the arm 24 so as to slide on the ywedge-shaped surface 36, thereby causing the piston 41 to be forced downwardly on the spring 34 and closing inlet-port 37.

The push-button 12 is for the purpose of imparting impulse, the same having connection by wire to batteries 14 and groundclamp 7, and also to magnets 15 and 15 and wire 64 and to contact-pin 4, las shown.

I claim: v i

1. yIn a motor-car a manifold having a transverse pipe leading therefrom, a pistoncylinder having a bridge centrally positioned therein'and having an upper tube and a lower tube extending from one side thereof and an aperture through said side between said tubes and extending into said cylinder, and having its other side provided with an upper opening and a lower opening and a chamber extending longitudinally therefrom, said chamber having a pipe extending transversely from its wall opposite said lower tube, said pipe being connected to the branch pipe of said manifold, an upper piston in said cylinder having a transversev aperture extending therethrough and having a piston rod extending upwardly therefrom, an armature connected to the upper end of said piston rod and having its upper side provided with a' wedge-shaped surface, electrically connected fixed magnets positioned between said armature and the upper end of said piston-cylinder and engageable by said armature, a pivoted arm having its lower end engageable with said wedge-shaped surface, a pivoted lever, means connecting said pivoted lever with the upper end of said pivoted arm, a lower piston in said piston-cylinder having a transverse aperture extending therethrough, a tube secured to the lower end of said lower piston and projecting from said piston cylinder, a rod projecting from the tube last mentioned and extending upwardly through said tube and said lower piston and secured to said upper piston, a spring between said bridge and said upper piston, a spring between the base of said piston-cylinder and said lower piston, an yarmature secured to the lower end of the tube last mentioned, fixed magnets positioned below the armature last mentioned and engageable with said armature, j

vessels containing mercury and provided with Contact pins projecting inwardly therein and upwardly therefrom, a tube connecting the bases of said vessels having a grounding-clamp connected thereto, means for conducting electricity extending from one of said contact-pins to one of said lower magnets, and from one of said lower magnets to one of said upper magnets, a suitable source of electricity, means for conducting electricity consisting of wires and including a switch extending from said grounding clamp to said source, and from the other ofv said contact-pins to one of said upper magnets, a push-button and means for conducting electricity extending from said pushbutton to a plurality of the wires extending to said source of electricity and said grounding-clamp respectively and to one of said contact pins and one of said lower magnets respectively, a brake, a piston-cylinder having end openings and a. lower side opening including a branch, a piston having a rod connected to said brake, a spring between said piston and one of the ends of said cylinder last mentioned, a rod pivotally supporting a shaft centrally connected thereto, said rod being endwise connected to the piston-cylinder last mentioned, arms connected to the ends of said shaft, and tubing connecting the branch last mentioned with the lower tube extending from one of the sides of the piston-cylinder first mentioned.

2. In a motor-car the combination with a manifold and an electric service for supplying and conducting electricity, of a pistoncylinder having transverse openings and end openings, an upper piston and a lower piston in said piston-cylinder, each of said pistons having a transverse aperture extending therethrough, springs bearing longitudinally against said pistons, fixed electrically connected magnets positioned above and below said piston-cylinder, a movable armature connected to said upper piston and engageable with said upper magnets and a movable armature connected to said lower piston and engageable with said lower magnets, a pair of vessels containing a liquid substance, means for permitting the passage of said substance from either of said vessels to the other, and means in connection with said service and magnets, including said substance and metallic elements penetrating said vessels, and a switch, arranged to con- V vey current through said service and magnets, and means permitting the passage of iuid between said manifold and said pistoncylinder.

3. In a motor-car the combination with a manifold and an electric service for supplying and conducting electricity of a piston cylinder having transverse openings and end openings, an upper piston and a lower piston in said piston-cylinder, each of said pistons having a transverse aperture extending therethrough, springs bearing longitudinally against said pistons, fixed electrically connected electro-magnets positioned above and below said piston-cylinder, a movable armature connected to said upper piston and engageable with said upper magnets and a movable armature connected to said lower piston and engageable with said lower magnets, a pair of vessels containing a liquid substance, means for permitting the passage of said substance from either of said vessels to the other, a slidable rod secured in said upper piston and projecting downwardly below said piston-cylinder, means in connection with said service and magnets, including said substance and metallic elements penetrating said vessels, and a switch, arranged to convey current through said service and magnets, and means permitting the passage of iiuid between said manifold and said piston cylinder.

4. In a motor-car the combination with a manifold and an electric service for supplying and conducting electricity of a piston cylinder having transverse openings and end openings, an upper piston and a lower piston in said piston-cylinder, each of said pistons having a transverse aperture extending therethrough, springs bearing longitudinally against said pistons, electrically connected electro-magnets positioned above and below said piston-cylinder, a movable armature having a wedge-shaped surface thereon connected to said upper piston and engageable with said upper magnets and a movable armature connected to said lower piston and engageable with said lower magnets, a pair of vessels containing a liquid substance, means for permitting the passage of said substance from either of said vessels to the other, a pivoted arm above and engageable with said wedge-shaped surface, means for manually operating said arm, means in connection with said service and magnets, including said substance and contact-pins penetrating said vessels, and a switch, arranged to convey current through said service and magnets, and means for the passage of fluid between said manifold and said piston cylinder. y

5. In a motor-car the combination with a manifold and an electric service for supplying and conducting electricity of a pistoncylinder having a bridge centrally positioned therein and having an upper tube and a lower tube extending from one side thereof and an aperture through said sidel between said tubes and extending into said cylinder, and having its other side provided with an upper opening and a lower opening and a wall projecting longitudinally from the last mentioned side constituting a chamber between said side and said wall and said wall having an opening with a branch pipe prol'lO jecting from said opening in alinement with said lower tube and lower opening, an upper and a lower piston in said piston-cylinder, each of said pistons having a transverse aperture extending therethrough, springs bearing longitudinally against said pistons, electrically connected electro-magnets positioned above and below said piston-cylinder, a movable armature having a wedge-shaped snrface thereon connected to said upper piston and engageable with said upper magnets, and a movable armature connected to said lower piston and engageable with said lower magnets, a pair of vessels containing a liquid substance, means including a groundingclamp for permitting the passage of said substance from either of said vessels to the other, a pivoted arm engageable with Said wedge-shaped surface, means for manually operating said arm, means in connection with said service and magnets, including said substance and contact-pins penetrating said vessels, and a switch, arranged to convey current through said service and said magnets, a push-button and Wires extending therefrom to the means last mentioned, and tubing between and in connection with said manifold and said branch pipe for conveying fluid therethrough.

6. In combination with a manifold, a piston-cylinder having transverse apertures in alinement extending therethrough and means for conveying fluid between said manifold and said apertures, of a lever, a piston-cylinder having an end opening and a lower side opening including a branch, a` piston in said piston-cylinder last mentioned having a rod connected to said lever, a spring bearing against the forward end of said piston, means for closing the end opening of the piston-cylinder last-mentioned opposite to the forward end of said piston, a rod centrally supporting a bar p ivoted thereto endwise projecting from the piston-cylinder last-mentioned, the outer end of said bar being provided with arms, and tubing connecting said branch with said transverse apertures.

In testimony whereof I afliX my signature in presence of two witnesses.

JOHANN G. VALLMANN.

Vitnesses:

J. J. SHERRY, M. R. Mansnx. 

